Home / 583,418.23-805,117.17-315,146.23

Finding the Fourth Proportional to 583,418.23, 805,117.17 and 315,146.23

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Solution

The fourth proportional to 583,418.23, 805,117.17 and 315,146.23 is: 434,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,418.23 : 805,117.17 = 315,146.23 : x
  2. Step 2: Convert to fraction form
    583,418.23/805,117.17 = 315,146.23/x
  3. Step 3: Cross multiply
    583,418.23x = 805,117.17 × 315,146.23
  4. Step 4: Simplify right side
    583,418.23x = 253,729,640,833.77
  5. Step 5: Solve for x
    x = 253,729,640,833.77/583,418.23
  6. Step 6: Final answer
    x = 434,901.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.